Ok, making progress here! Changing the version number did make it show up in the scripts list.
A good start. Now, for the small issues... Issue #1 is that when the viewer pane opens up, it displays the text of the folder.xml file. Not that it's a deal breaker, but not really desirable for me.. I just have to click on the first image file after the folder.xml in order to see an actual photo.
The other issue, and more important to me, is that the size of the viewer pane that opens is pretty small. It takes up only about 1/3 of my screen size on the extreme right side of my dual lister setup. When I use the command to open the viewer pane in the script I was modding, the size was almost twice as large. Thing is, with the smaller size pane I get with your script, the photos are smaller for viewing. The larger size viewer pane with Set ViewPane=on allows viewing the photos in the larger format.
Is that the result of your script, or some setting within Opus itself?
EDIT: OK, I found a workaround for the folder.xml being displayed first. Since I have my files sorted alphabetically, I figured that was the problem. So I changed your script to look for zzz.xml , then renamed folder.xml to zzz.xml and now that is the last file in the folder, so it does not show up as the first thing when entering the folder.
Not the greatest solution, but the only one I can think of..